Gap between bed and wall

DD has had 2 nights in her new bed and sleeping beautifully but im a bit worried about the gap between her matress and the wall. Because of her bed frame this is the closest i can get but i measured the gap its 7cm. Do u think thats big enough for a 28 month old to get their head stuck?

Ive read that there shouldnt be a gap between the matress and bed big enough for them to get their head in there ( who knows how big that would be) esp for under 2 yr olds and beds that can move away from the wall ( ensemble) and that stuffing blankets in the gap can increase the risk.

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